// Copyright © 2017, Oracle and/or its affiliates. All rights reserved.
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License, version 2.0, as
// published by the Free Software Foundation.
//
// This program is also distributed with certain software (including
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// as designated in a particular file or component or in included license
// documentation.  The authors of MySQL hereby grant you an
// additional permission to link the program and your derivative works
// with the separately licensed software that they have included with
// MySQL.
//
// Without limiting anything contained in the foregoing, this file,
// which is part of MySQL Connector/NET, is also subject to the
// Universal FOSS Exception, version 1.0, a copy of which can be found at
// http://oss.oracle.com/licenses/universal-foss-exception.
//
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// WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
// See the GNU General Public License, version 2.0, for more details.
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using Microsoft.EntityFrameworkCore.Storage;
using System;
using System.Collections.Generic;
using System.Text;
using System.Data;
using System.Globalization;

namespace MySql.Data.EntityFrameworkCore.Storage.Internal
{
  internal abstract partial class MySQLTypeMapping : RelationalTypeMapping
  {
    protected virtual string SqlLiteralFormatString { get; } = "{0}";

    protected MySQLTypeMapping(
        [NotNull] string storeType,
        [NotNull] Type clrType,
        [CanBeNull] DbType? dbType = null,
        bool unicode = false,
        int? size = null,
        bool hasNonDefaultUnicode = false)
      : base(storeType, clrType, dbType, unicode, size, hasNonDefaultUnicode)
    {
    }

    public abstract RelationalTypeMapping Clone([NotNull] string storeType, int? size);

    protected virtual string GenerateNonNullSqlLiteral([NotNull] object value)
      => string.Format(CultureInfo.InvariantCulture, SqlLiteralFormatString, value);

    public virtual string GenerateSqlLiteral([CanBeNull] object value)
      => value == null
        ? "NULL"
        : GenerateNonNullSqlLiteral(value);

    public override RelationalTypeMapping CreateCopy([NotNull] string storeType, int? size)
    {
      return Clone(storeType, size);
    }
  }
}
